Calculate energies of the three lowest states of positronium

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Reference no: EM131013967

1. Show that the quantization of angular momentum L = n U follows from Bohr's Assumption D that the mean value K of the kinetic energy of the electron- nucleus system is given by K = nhforb/2. Assume a circular orbit.

2. (a) Calculate the energies of the three lowest states of positronium.

(b) Determine the wavelengths of the Ka, K/3, La, and L/3 transitions.

3. Careful measurements of light from a distant galaxy show that the longest observed wavelength in the Lyman series of hydrogen is 137.15 nm. If the galaxy is moving directly away from us, what is its velocity?

Reference no: EM131013967

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